Optical and microstructural characterization of nanocrystalline Cu doped ZnO diluted magnetic semiconductor thin film for optoelectronic applications

2021 ◽  
Vol 119 ◽  
pp. 111312
Author(s):  
Gharieb A. Ali ◽  
M. Emam-Ismail ◽  
M. El-Hagary ◽  
E.R. Shaaban ◽  
S.H. Moustafa ◽  
...  
2014 ◽  
Vol 25 (9) ◽  
pp. 4179-4186 ◽  
Author(s):  
B. Babu ◽  
G. Thirumala Rao ◽  
V. Pushpa Manjari ◽  
K. Ravindranadh ◽  
R. Joyce Stella ◽  
...  

2002 ◽  
Vol 722 ◽  
Author(s):  
Shaoguang Yang ◽  
Silas T. Hung ◽  
Herman H.Y. Sung ◽  
A.B. Pakhomov ◽  
C.Y. Wong

AbstractSynthesis and characterization of transparent Co-doped ZnO and TiO2 diluted magnetic semiconductor (DMS) films are described. The films are prepared by single sputtering deposition. They are ferromagnetic at temperatures as high as 350 K. The films were characterized by X-ray diffraction (XRD), X-ray photoemission spectroscopy (XPS), X-ray fluorescence (XRF). Optical transparency was measured on UV/VIS spectrometer. The Codoped ZnO films had wurtzite structure similar to ZnO with the (002) preferential texture. Neither XRD nor XPS showed any presence of pure Co or CoO in the samples. The Co-doped TiO2 samples were amorphous, and some unoxidized Co was found in the films.


2020 ◽  
Vol 12 (4) ◽  
pp. 524-529
Author(s):  
C. Thirupathi ◽  
S. Nithiyanantham ◽  
M. Sentilkumar ◽  
A. Arivudainambi ◽  
S. Mahalakshmi ◽  
...  

The diluted magnetic semiconductor (DMS), are promising materials in the ferromagnetic exchange coupling between localized spins. ZnO nanoparticles in pure and cobalt doped with 2%, 4%, 6% and 8% were prepared through co-precipitation method at room temperature. XRD analysis showed the Co doped ZnO crystalizes in a wurzite structure. The particle size decreases with increase in concentration of cobalt. The SEM micrographs shows similar and regular equal in size depends with the increase of Co concentration and formation of spherical super structure and confirmed the Co2+ is completely replaced into the Zn2+ site of ZnO host structure. The size depends with the concentration are evident from EDAX analysis. The remarkable spin performances with increase of Co are confirming the above results.


2009 ◽  
Vol 109 (5) ◽  
pp. 644-648 ◽  
Author(s):  
M. Kodzuka ◽  
T. Ohkubo ◽  
K. Hono ◽  
F. Matsukura ◽  
H. Ohno

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